NICER observation list: Target ID 467901
- Proposal Number = 4679
- Target ID = 467901
- Target Name = SRGA_J213151.1+491405
- Proposal Title = SPECTRAL AND TEMPORAL STUDIES OF A NEW CATACLYSMIC VARIABLE DETECTED DURING THE SCAN PERIOD OF SPEKTR-RG MISSION
- PI = SOLEN BALMAN
- Proposal Category = WHITE DWARFS AND CATACLYSMIC VARIABLES
- Cycle number = 4
- Observation Type = NOR
Abstract
We propose to observe a new X-ray source detected during the scan of the SRG mission for 40 ksec with NICER jointly with NuSTAR for 55 ksec. We have optically identified it to be most likely a magnetic cataclysmic variable. We plan to recover the white dwarf spin period, the orbital period and other sideband frequencies or QPOs to confirm the magnetic nature and characterize the X-ray spectrum (measuring temperature, flux, soft excess) over the wide energy range of 0.3-78 recovering emission lines and absorption components in the NICER energy band together with the 6-7 keV line complex and any Compton reflection component in the NuStar range. We will study orbit/spin phase-resolved spectra using NICER that will yield important details on accretion processes and geometry of the source.
Obsid |
RA |
DEC |
l |
b |
Start |
End |
Exposure |
Number of Modules |
Number of Processing |
Status of Processing |
Date of Processing |
Public date |
4679010101 |
322.962 |
49.234 |
92.954 |
-1.661 |
59377.9544 |
59377.9650 |
798.0 |
52 |
6 |
VALIDATED |
59387.7 |
59391 |
4679010102 |
322.963 |
49.235 |
92.955 |
-1.661 |
59378.0102 |
59378.9341 |
24772.0 |
52 |
6 |
VALIDATED |
59388.6 |
59392 |
4679010103 |
322.962 |
49.234 |
92.954 |
-1.661 |
59378.9812 |
59379.3854 |
12361.0 |
52 |
7 |
VALIDATED |
59388.7 |
59393 |